Returns for the Standard & Poor's MidCap 400 is shown above for four time periods. For example: the change in the Standard & Poor's MidCap 400 Stock Index was 4.0% in the last month. With that return, the S&P 400 Index was ranked 4th out of the 23 indexes reviewed in this site for that time period. Dividends are not included.

Part 2: HISTORICAL HIGHLIGHTSThe performance ranking of the S&P 400 Index relative to the other 23 stock indexes covered in this site is detailed below. Four different time periods are reviewed. The Standard & Poor's MidCap 400 is compared to foreign and domestic, large cap and small cap indexes. Each paragraph identifies the top and bottom performers as well as the average and median market performance for the indexes during in each time period.

Last Month:During May of 2018, the S&P MidCap 400 had a rank of 4 with a return of 3.95%. The top ranked index during May was the S&P 600 Index, with a return of 6.34%. The worst performing index during that period was the Mexico IPC Index with a return of -7.65%.The median return for all stock market indexes during May was 2.16%. The average return for the indexes during the month was 1.14%.

Last Year:During the last 12 months, the S&P MidCap 400 had a rank of 8 with a return of 13%. The top ranked index during the last year was the S&P 600 Index, with a return of 21%. The worst performing index during that period was the Mexico IPC Index with a return of -8%.The median return for the indexes during this period was 12%. The average return for all stock market indexes over the year was 10%.

Last 5 Years:Over the 5 years ended May of 2018, the S&P MidCap 400 had a rank of 8 with a return of 64%. The top ranked index during the 5 year period was the NASDAQ 100 Index, with a return of 134%. The worst performing index during that period was the Straits Times Stock Index with a return of 4%.The median return for all stock market indexes during this time period was 62%. The average return for the indexes over the 5 years was 53%.

Last 10 Years:During the 10 years ended May of 2018, the S&P MidCap 400 had a rank of 3 with a return of 121%. The top ranked index during the period was the NASDAQ 100 Index, with a return of 243%. The worst performing index during the 10 year time period was the Straits Times Stock Index with a return of 7%.The median return for the indexes during the last 10 years was 82%. The average return for all stock market indexes over that time frame was 75%.

All calculations are based on the monthly market close for each index, excluding dividends.